Steel S275JR is a highly versatile structural steel grade that complies with the EN 10025-2 standard. As a non-alloy structural steel, it is commonly used for manufacturing flat and long hot-rolled products, as well as semi-finished products.
Steel S275JR
This article details its chemical composition, mechanical properties, and welding capabilities, making it an ideal choice for various construction and machine-building projects. GNEE Steel, your reliable supplier, offers S275JR in various forms and ensures high-quality delivery for your project needs.
Chemical Composition of S275JR Steel
The chemical composition of S275JR steel is critical to its performance and usability in different applications. Below is the detailed analysis based on the EN 10025-2 standard:
| Element | Maximum Content (%) |
|---|---|
| C (Carbon) | ≤ 0.21 |
| Mn (Manganese) | ≤ 1.50 |
| P (Phosphorus) | ≤ 0.035 |
| S (Sulfur) | ≤ 0.035 |
| N (Nitrogen) | ≤ 0.012 |
| Cu (Copper) | ≤ 0.55 |
The chemical composition ensures a balance between strength and ductility, making S275JR an excellent choice for structural integrity.
Mechanical Properties of S275JR Steel
Understanding the mechanical properties is essential for determining the suitability of S275JR steel for various load-bearing applications. Below is the yield strength and strength limit based on nominal thickness:
| Nominal Thickness (mm) | Minimum Yield Strength (MPa) | Strength Limit (MPa) |
|---|---|---|
| < 3 | 275 | 430-580 |
| ≥3 ≤ 16 | 275 | 410-560 |
| > 16 ≤ 40 | 265 | 410-560 |
| > 40 ≤ 63 | 255 | 410-560 |
| > 63 ≤ 80 | 245 | 410-560 |
| > 80 ≤ 100 | 235 | 410-560 |
| > 100 ≤ 150 | 225 | 400-540 |
| > 150 ≤ 200 | 215 | 380-540 |
| > 200 ≤ 250 | 205 | 380-540 |
| > 250 ≤ 400 | 195 | 380-540 |
The strength limits are tailored to accommodate various thicknesses, making S275JR a reliable option for structural steel applications.
S275JR Steel Analogues
Steel grade S275JR has equivalents in various countries. These analogues are important when sourcing or comparing steel grades:
Germany: St44-2
France: E28-2
UK: 43B
Europe (Outdated): Fe430B
Sweden: 1412-00
Norway: NS12142
These international equivalents offer flexibility when sourcing S275JR for projects across different regions.
Applications of S275JR Steel
S275JR steel is primarily used in the construction of welded and riveted steel structures. Its ability to withstand moderate loads makes it ideal for machine-building applications such as bushings, shafts, and axles. S275JR is commonly found in bridges, buildings, and industrial structures due to its excellent weldability and ductility.
Welding Capabilities of S275JR Steel
One of the key features of S275JR steel is its weldability. It can be welded without restrictions, and welding can be carried out without preheating and without the need for subsequent heat treatment. This makes S275JR a great option for projects requiring quick turnaround and efficient fabrication.
In summary, S275JR steel offers a great balance of strength, ductility, and weldability, making it suitable for a wide range of structural and machine-building applications.
At GNEE Steel, we ensure top-quality products with full certification, and we deliver S275JR steel on time, every time.
Contact us for the latest S275JR steel price list, and get a quote today!
What is material S275JR?
S275JR grade steel is a readily weldable low carbon manganese steel with good impact resistance. This material is commonly supplied in the untreated or normalised condition. Machinability of this material is similar to that of mild steel.
What is S275JR equivalent in China?
S275JR EN 10025 equivalent steel material in China is Q275 steel. S275JR EN 10025 equivalent steel Q275 is a Chinese carbon structural steel, whose minimum yield strength is 275 MPa.
Is S275JR hot rolled?
The 2500 x 1250 x 6mm Hot Rolled Plate – S275JR is a structural steel plate produced to BS EN 10025-2 standards. Manufactured using the hot rolling process, this plate offers excellent formability, weldability, and strength, making it suitable for a wide range of fabrication and structural applications.
What does S235JR stand for?
The letter S stands for that the steel plate is structural. The number 235 indicates steel's yield strength. The letter JR means that the steel grade has undergone a Charpy impact test and is of high quality. The S235JR is a specification given to it, with each symbol indicating something different.